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Finding the Fourth Proportional to 288,156.40, 432,200.58 and 77,810.74

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Solution

The fourth proportional to 288,156.40, 432,200.58 and 77,810.74 is: 116,706.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,156.40 : 432,200.58 = 77,810.74 : x
  2. Step 2: Convert to fraction form
    288,156.40/432,200.58 = 77,810.74/x
  3. Step 3: Cross multiply
    288,156.40x = 432,200.58 × 77,810.74
  4. Step 4: Simplify right side
    288,156.40x = 33,629,846,958.23
  5. Step 5: Solve for x
    x = 33,629,846,958.23/288,156.40
  6. Step 6: Final answer
    x = 116,706.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.